Home / 27,756.18-38,304.09-15,181.74

Finding the Fourth Proportional to 27,756.18, 38,304.09 and 15,181.74

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Solution

The fourth proportional to 27,756.18, 38,304.09 and 15,181.74 is: 20,951.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.18 : 38,304.09 = 15,181.74 : x
  2. Step 2: Convert to fraction form
    27,756.18/38,304.09 = 15,181.74/x
  3. Step 3: Cross multiply
    27,756.18x = 38,304.09 × 15,181.74
  4. Step 4: Simplify right side
    27,756.18x = 581,522,735.32
  5. Step 5: Solve for x
    x = 581,522,735.32/27,756.18
  6. Step 6: Final answer
    x = 20,951.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.